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Ublox MAX-F10S Integration Manual

Standard precision gnss module professional grade
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MAX-F10S
Standard precision GNSS module
Professional grade
Integration manual
Abstract
This document describes the features and application of the u-blox MAX-
F10S module, an L1/L5 dual-band GNSS receiver for meter-level accuracy
in urban environment.
www.u-blox.com
UBXDOC-963802114-12892 - R01
C1-Public
Note! GPS L5 signals are pre-operational
and not used by default. Refer to the
Overview section for more information.

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Summary of Contents for Ublox MAX-F10S

  • Page 1  MAX-F10S Standard precision GNSS module Professional grade Integration manual Abstract This document describes the features and application of the u-blox MAX- F10S module, an L1/L5 dual-band GNSS receiver for meter-level accuracy in urban environment. Note! GPS L5 signals are pre-operational and not used by default.
  • Page 2 MAX-F10S - Integration manual Document information Title MAX-F10S Subtitle Standard precision GNSS module Document type Integration manual Document number UBXDOC-963802114-12892 Revision and date 14-Aug-2024 Disclosure restriction C1-Public This document applies to the following products: Product name Type number FW version IN/PCN reference RN reference...
  • Page 3 MAX-F10S - Integration manual Contents 1 System description.......................6 1.1 Overview..............................6 1.2 Architecture..............................6 1.2.1 Block diagram..........................6 1.3 Pin assignment............................7 2 Receiver configuration......................9 2.1 Basic receiver configuration........................9 2.1.1 Basic hardware configuration...................... 9 2.1.2 Internal LNA mode configuration....................9 2.1.3 GNSS signal configuration......................10 2.1.4 GPS L5 signal health status configuration................
  • Page 4 MAX-F10S - Integration manual 3.7.5 Time validity..........................41 3.7.6 UTC representation........................42 3.7.7 Leap seconds..........................43 3.7.8 Date ambiguity..........................43 3.8 Time mark.............................. 44 3.9 Time pulse.............................. 45 3.9.1 Recommendations........................46 3.9.2 Time pulse configuration......................46 3.10 Time maintenance..........................48 3.10.1 Real-time clock...........................48 3.10.2 Time assistance.........................48...
  • Page 5 MAX-F10S - Integration manual A.2 Firmware changes...........................76 B Reference designs............................78 B.1 Typical design..........................78 B.2 Antenna supervisor designs......................80 C External components..........................83 C.1 Standard capacitors........................83 C.2 Standard resistors.......................... 83 C.3 Inductors............................83 C.4 Operational amplifier........................83 C.5 Open drain buffers.......................... 83 C.6 Switch transistors...........................83...
  • Page 6 1.1 Overview MAX-F10S is built on the u-blox F10 dual-band GNSS technology using L1 and L5 band signals. The proprietary dual-band multipath mitigation technology enables the u-blox F10 to use the best signals from the L1 and L5 bands providing a solid meter-level position accuracy in urban environment.
  • Page 7 MAX-F10S - Integration manual 1.3 Pin assignment Figure 2: MAX-F10S pin assignment Pin no. Name PIO no. I/O Description Remarks Connect to GND UART TX If not used, leave open. Alternative functions UART RX If not used, leave open. Alternative functions TIMEPULSE...
  • Page 8 To enter safeboot mode, set this pin to low at receiver's startup. Otherwise, leave it open. The SAFEBOOT_N pin is internally connected to TIMEPULSE pin through a 1 kΩ series resistor. Table 1: MAX-F10S pin assignment UBXDOC-963802114-12892 - R01 1 System description Page 8 of 86  ...
  • Page 9 10 receivers feature an internal low-noise amplifier (LNA) with three operational modes: normal gain, low gain and bypass mode. The MAX-F10S default is the low gain mode. With a high- gain external active antenna, use the bypass mode to save power. The normal gain mode is not recommended for MAX-F10S.
  • Page 10 UBX-CFG-VALGET message. 2.1.3 GNSS signal configuration MAX-F10S supports reception of GPS, Galileo, BeiDou and QZSS L1/L5 dual-band signals plus NavIC L5 and SBAS L1. The default configuration is concurrent reception of GPS (L1C/A, L5), Galileo (E1- B/C, E5a) and BeiDou (B1C, B2a) with SBAS enabled.
  • Page 11 [3]. 2.1.4 GPS L5 signal health status configuration MAX-F10S supports both GPS L1 C/A and L5 signals. Broadcasting of Civil Navigation (CNAV) messages on the L5 signal began in April 2014. At the time of writing, GPS L5 signals remain...
  • Page 12 CFG-I2CINPROT-* CFG-I2COUTPROT-* CFG-TXREADY-* Table 6: Interface configuration The UART baudrate in MAX-F10S is configured to 9600 baud which is different to the firmware default. This ensures backwards compatibility with previous generations of u-blox MAX modules. 2.1.6 Message output configuration The receiver supports two protocols for output messages: industry-standard NMEA and u-blox UBX.
  • Page 13 MAX-F10S - Integration manual • Control voltage supply to the antenna, which allows the antenna supervisor to cut power to the antenna in the event of a short circuit or optimize power to the antenna in power save modes. • Detect a short circuit in the antenna and automatically recover the antenna supply after the short circuit is no longer present.
  • Page 14 MAX-F10S - Integration manual 2.2 Navigation configuration This section presents various configuration options related to the navigation engine. These options can be configured through CFG-NAVSPG-* configuration keys. 2.2.1 Dynamic platform The dynamic platform model can be configured through the CFG-NAVSPG-DYNMODEL configuration item. For the supported dynamic platform models and their details, see...
  • Page 15 MAX-F10S - Integration manual Configuration item Description CFG-NAVSPG-FIXMODE By default, the receiver calculates a 3D position fix if possible but it reverts to 2D position if necessary (auto 2D/3D). The receiver can be configured to only calculate 2D (2D only) or 3D (3D only) positions.
  • Page 16 MAX-F10S - Integration manual message ( heading field), NMEA-RMC message ( cog field), and NMEA-VTG message ( cogt field). The filtering level can be set via the CFG-ODO-COGLPGAIN configuration item and must be between 0 (heavy low-pass filtering) and 255 (weak low-pass filtering).
  • Page 17 MAX-F10S - Integration manual Figure 4: Flowchart of static hold mode 2.2.6 Freezing the course over ground If the low-speed course over ground filter is deactivated or inactive (see section Low-speed course over ground filter), the receiver derives the course over ground from the GNSS velocity information.
  • Page 18 Figure 5: Flowchart of course over ground freezing 2.3 OTP memory configuration MAX-F10S contains a one-time programmable (OTP) memory. This is a non-volatile memory for storing configuration settings and ROM patches permanently in the device. The stored data cannot be modified after it has been initially programmed. The device applies the settings and ROM patches on the device startup.
  • Page 19 SBAS is recommended to use, as the accuracy of an L1/L5 receiver is highly affected by ionospheric delays. For receiving correction data, MAX-F10S automatically chooses the best SBAS satellite as its primary source. It selects only one satellite since the information received from other SBAS satellites is redundant and could be inconsistent.
  • Page 20 MAX-F10S - Integration manual Parameter Description CFG-SIGNAL-SBAS_ENA Enabled/disabled status of the SBAS subsystem CFG-SBAS-USE_TESTMODE Allow/disallow SBAS usage from satellites in test mode (enable when BDSBAS is used) CFG-SBAS-USE_RANGING Use the SBAS satellites for navigation (ranging) CFG-SBAS-USE_DIFFCORR Combined enable/disable switch for fast, long-term, and ionosphere corrections...
  • Page 21 Multiple QZSS SLAS signals can be received simultaneously. When receiving QZSS SLAS correction data, MAX-F10S will autonomously select the best QZSS satellite. The selection strategy is determined by the quality of the QZSS L1S signals, the receiver configuration (test mode allowed or not), and the location of the receiver with respect to the QZSS SLAS coverage area.
  • Page 22 If the RAIM option is set, QZSS is the only GNSS time system that measurements can observe. 3.2 Communication interfaces and PIOs MAX-F10S supports communication over UART for communication with a host system. UBX and NMEA protocols can be enabled simultaneously with individual interface settings, e.g. for baud rate, message rates, and so on.
  • Page 23 MAX-F10S - Integration manual I2C lines, additional external pull-up resistors may be necessary. The higher the speed and the capacitance load, the lower the pull-up resistor needs to be. To poll or set the I2C address, use the CFG-I2C-ADDRESS configuration item. Refer to Interface description [3] for details.
  • Page 24 MAX-F10S - Integration manual Next, the 8-bit address of the register to be read must be written to the bus (0xFD for u-blox receivers). Following the receiver's acknowledgment, the controller again triggers a start condition and writes the device address, but this time the RW bit is a logic high to initiate the read access.
  • Page 25 Figure 9: I2C write access 3.2.3 PIOs This section describes the PIOs supported by MAX-F10S. All PIO active voltage levels are related to the V_IO supply voltage. All the inputs have internal pull-up resistors in normal operation and can be left open if unused.
  • Page 26 The SAFEBOOT_N pin is internally connected to the TIMEPULSE pin through a 1 kΩ series resistor. 3.2.3.3 TIMEPULSE The MAX-F10S features one time pulse output at the TIMEPULSE pin. This can only be configured in PIO4. The details about this feature are explained in the section Time pulse.
  • Page 27 The MAX-F10S can make use of the two pin antenna supervisor if only the UART or I2C port is used. The three pin version can be used if the EXTINT PIO pin input is not required.
  • Page 28 An active antenna supervisor circuit uses the ANT_DETECT, ANT_OFF_N, and ANT_SHORT_N signals. The ANT_OFF_N signal is already enabled and assigned to the LNA_EN pin in MAX-F10S. The ANT_DETECT and ANT_SHORT_N signals can be assigned to any unused PIOs, which may require disabling the previous function of the PIOs.
  • Page 29 (ANT_OFF_N) and antenna status detection (ANT_SHORT_N). The ANT_OFF_N signal is already enabled and assigned to the LNA_EN pin in MAX-F10S and the ANT_SHORT_N signal can be assigned to any unused PIO, which may require disabling the previous function of the PIO. To enable the reduced antenna supervisor, the ANT_SHORT_N signal must be enabled in the receiver configuration.
  • Page 30 V_ANT is the same voltage level as V_IO. 3.3.1.3 Antenna voltage control - ANT_OFF_N The antenna voltage control is enabled by default in MAX-F10S with the configuration item CFG- HW-ANT_CFG_VOLTCTRL set to true (1). The antenna status (as reported in UBX-MON-RF and UBX-INF-NOTICE messages) is not reported unless the antenna voltage control has been enabled.
  • Page 31 MAX-F10S - Integration manual • UBX-MON-RF: Antenna status = OK. Antenna power status = ON. • ANT_OFF_N = active low. The pin is pulled high to enable an external antenna or LNA. Startup message at power-up if the configuration is stored: $GNTXT,01,01,02,ANTSUPERV=AC *00...
  • Page 32 MAX-F10S - Integration manual • UBX-MON-RF: Antenna status = OK. Antenna power status = ON. • ANT_OFF_N = active low. The pin is pulled high to enable an external antenna. • ANT_SHORT_N = active low. The pin is default high (PIO pull-up enabled, to be pulled low if a SHORT is detected).
  • Page 33 MAX-F10S - Integration manual 3.3.1.7 Antenna status reporting The antenna detection and antenna power status that is available in UBX-MON-RF and NMEA notice messages, is based on the antenna's physical state. The required antenna supervisor configuration keys depend on the selected antenna supervisor implementation (three-pin or two-pin).
  • Page 34 MAX-F10S - Integration manual Configuration keys Physical antenna state Reported antenna status VOLTCTRL SHORTDET OPENDET PWRDOWN RECOVER Short circuit Open circuit antPower antStatus FALSE TRUE UNKNOWN OPEN Table 23: Antenna supervisor configuration and antenna states 3.4 Forcing receiver reset GNSS receivers typically make a distinction between cold, warm, and hot start based on the type of valid information the receiver has during the restart.
  • Page 35 The TTFF after using any reset type that clears the BBR is similar to performing a cold start. 3.5 Security The security concept of MAX-F10S covers: • The integrity of the receiver • Communication between the receiver and the GNSS satellites Some security functions monitor and detect threats and report them to the host system.
  • Page 36 It is advised not to restart the receiver while it's indicating spoofing. 3.5.1.3 Messages related to jamming and spoofing detection and monitoring MAX-F10S have the capability to both detect and monitor jamming/interference and spoofing and to report it to the user.
  • Page 37 • Secure boot • Receiver configuration lock 3.5.2.1 Secure boot The MAX-F10S boots only with firmware images that are signed by u-blox. This prevents the execution of non-genuine firmware images on the receiver. 3.5.2.2 Receiver configuration lock The receiver configuration lock feature ensures that no configuration changes are possible once the feature is enabled.
  • Page 38 An example of use case is that the host application locks the receiver configuration. A user communicating with the MAX-F10S through any of the available interfaces can poll, enable or send messages, but cannot change the configuration by sending UBX configuration messages.
  • Page 39 MAX-F10S - Integration manual 3.6.2.2 Software standby mode Software standby mode is entered using the UBX-RXM-PMREQ message. V_IO and VCC must be supplied, however VCC supply is internally disabled to save power. The V_IO supply maintains the battery-backed RAM (BBR), RTC, and PIOs.
  • Page 40 MAX-F10S - Integration manual Service Center, China (NTSC). While the different UTC variants are normally closely aligned, they can differ by as much as a few hundreds of nanoseconds. Although u-blox receivers can combine a variety of different GNSS times internally, the user must choose a single type of GNSS time and, separately, a single type of UTC for input (on EXTINT pins) and output (via the TIMEPULSE pin) and the parameters reported in corresponding messages.
  • Page 41 MAX-F10S - Integration manual to the desired fix period as measured in GNSS system time. Consequently, the number of 1 kHz clock ticks between fixes occasionally varies. This means that when producing one fix per second, there are normally 1000 clock ticks between fixes, but sometimes, to correct drift away from the GNSS system time, there are 999 or 1001 ticks.
  • Page 42 MAX-F10S - Integration manual • Time validity confirmation: Information about confirmed validity is provided in the confirmedDate and confirmedTime flags in the UBX-NAV-PVT message. If these flags are set, the time validity can be confirmed by using an additional independent source, meaning that the probability of the time to be correct is very high.
  • Page 43 MAX-F10S - Integration manual The preferred variant of UTC time can be specified using the CFG-NAVSPG-UTCSTANDARD configuration item. The UTC time variant configured must correspond to a GNSS that is currently enabled. Otherwise the reported UTC time is inaccurate. 3.7.7 Leap seconds Due to the slightly uneven spin rate of the Earth, UTC time gradually moves out of alignment with the mean solar time (that is, the sun no longer appears directly overhead at 0 longitude at midday).
  • Page 44 MAX-F10S - Integration manual The following example illustrates how this works: Assume that the reference rollover week number set in the firmware at compile time is 2148 (which corresponds to a week in calendar year 2021, but is transmitted by the satellites as 100). In this case, if the receiver sees transmissions containing week numbers in the range of 100 ...
  • Page 45 MAX-F10S - Integration manual Figure 12: Time mark 3.9 Time pulse The receiver includes a time pulse feature providing clock pulses with configurable duration and frequency. The time pulse function can be configured using the CFG-TP-* configuration group. The UBX-TIM-TP message provides time information for the next pulse and the time source.
  • Page 46 MAX-F10S - Integration manual Figure 13: Time pulse 3.9.1 Recommendations • The time pulse can be aligned to a wide variety of GNSS times or to variants of UTC derived from them. For further information, see GNSS time bases. However, it is strongly...
  • Page 47 MAX-F10S - Integration manual It is possible to define different signal behavior (i.e. output frequency and pulse length) depending on whether or not the receiver is locked to reliable time source. The configuration group CFG-TP-* can be used to change the time pulse settings, and includes the following parameters defining the pulse:...
  • Page 48 first fixes. MAX-F10S also provides improved time to first fix (TTFF) when RTC is not available and backup domain is supplied. The receiver uses the time of the last position that is stored in the BBR before the receiver is powered off...
  • Page 49 MAX-F10S - Integration manual is important for the host application, the information can be supplied to the receiver via the UBX- MGA-GPS-UTC aiding message. 3.10.3 Frequency assistance To supply hardware frequency assistance, connect a periodic rectangular signal with a frequency of up to 500 kHz to the EXTINT pin. The frequency can have an arbitrary duty cycle but the low/high phase duration must not be shorter than 50 ns.
  • Page 50 MAX-F10S - Integration manual Figure 16: PL bounding true position error 3.11.2 Interface The protection level bounds the true position error with a target misleading information risk (TMIR), for example 5% [MI/epoch] (read: 5% probability of having an MI per epoch). The target misleading...
  • Page 51 MAX-F10S - Integration manual conditions. These conditions tend to be binary in nature, such as jamming has been detected, or the minimum number of satellites is being observed. UBX-NAV-PL reports a PL validity flag (see UBX- NAV-PL.plPosValid), which indicates whether the PL is usable.
  • Page 52 Do not use more than 1 week old AssistNow Offline data when high navigation rate (i.e. more than 1 Hz) is used. Do not use BeiDou AssistNow aiding data because MAX-F10S does not support B1I. Using BeiDou aiding data can force the receiver to search for B1I satellites (B1-B18) that do not transmit B1C signals, potentially degrading the receiver performance.
  • Page 53 UBX messages reported to the host; these messages can be stored by the host and sent back to the receiver when it has been restarted. See the description of the UBX-MGA-DBD messages in the MAX-F10S Interface description [3] for more information. 3.12.3 AssistNow offline AssistNow Offline is a feature that combines special firmware in u-blox receivers and a proprietary...
  • Page 54 MAX-F10S - Integration manual each different GNSS requires its own data and in extreme cases, several hundred kilobytes of data will be provided by the service. This amount can be reduced by requesting lower resolution, but this will have a small negative impact on both position accuracy and TTFF. See the section on Offline...
  • Page 55 Similarly, where a receiver has effective non-volatile storage, the last known position will be recalled, but if this is not the case, then providing a position estimate via one of the UBX-MGA-INI-POS_XYZ or UBX-MGA-INI-POS_LLH messages will improve the TTFF (details can be found in the MAX-F10S interface description [3].
  • Page 56 MAX-F10S - Integration manual 3.12.3.3.1 Host-based procedure The typical sequence for host-based AssistNow Offline is as follows: • The host downloads a copy of the latest data from the AssistNow Offline service and stores it locally. • Optionally it may also download a current set of almanac data from the AssistNow Online service.
  • Page 57 MAX-F10S - Integration manual • The operation of the AssistNow Autonomous feature is transparent to the user and the operation of the receiver. All calculations are done in the background and do not affect the normal operation of the receiver. • The AssistNow Autonomous subsystem automatically invalidates data that has become too old and that would introduce unacceptable positioning errors.
  • Page 58 MAX-F10S - Integration manual • The UBX-NAV-AOPSTATUS message provides information on the current state of the AssistNow Autonomous subsystem. The status indicates whether the AssistNow Autonomous subsystem is currently idle (or not enabled) or busy generating data or orbits. Hosts should monitor this information and only power off the receiver when the subsystem is idle (that is, when the status field shows a steady zero).
  • Page 59 That is, the configuration provides a common minimum elevation cut-off for all satellite azimuth angles. MAX-F10S also provides CFG-NAVMASK-SV_MASK_* configuration keys for excluding certain satellites from navigation that are known to introduce signal distortions and performance degradation due to multi-path effects.
  • Page 60 These are listed in Supply design examples. Refer to the MAX-F10S Data sheet [1] for absolute maximum ratings, operating conditions, and power requirements. 4.1.1 VCC VCC provides power to the core and RF domains and must be supplied during normal operation. The VCC pin supplies power to the core via an internal DCDC converter for efficient power consumption.
  • Page 61 MAX-F10S - Integration manual If the hardware backup mode is not used, leave the V_BCKP pin open. 4.1.4 Supply design examples The two voltage ranges for V_IO allow several combinations when designing the receiver power supply. Depending on the chosen combination, there are certain requirements to be considered.
  • Page 62 MAX-F10S - Integration manual Figure 20: VCC and V_IO supplied by separate supplies, and external power supply at V_BCKP Figure 21: VCC and V_IO supplied by separate supplies. No external power supply at V_BCKP. 4.2 RF interference The GNSS signal power received at the antenna is very low compared to other wireless communication signals.
  • Page 63 The sections Out-of-band blocking immunity Out-of-band rejection provide more information about the RF immunity of the MAX-F10S module and mitigating out-of-band interference. 4.2.3 Spectrum analyzer The UBX-MON-SPAN message can be enabled in u-center 2 to provide a low-resolution spectrum analyzer sufficient to identify noise or jammers in the reception band. Once enabled, u-center 2 includes a real-time chart that is updated once per second with the message data.
  • Page 64 RF front-end. 4.3.1 Internal LNA modes In addition to the wide-band LNA integrated in the RF front-end circuit in MAX-F10S, there are internal LNAs in the u-blox F10 receiver. The internal L1 and L5 band LNAs in the receiver have three operating modes: normal gain, low gain, and bypass mode.
  • Page 65 • The bypass mode can be used up to 40 dB external gain. There are also minor improvements in immunity and power consumption in the bypass mode. • Normal-gain mode is not recommended for MAX-F10S. The internal LNA mode can be configured at run time in BBR and RAM layers using the configuration item CFG-HW-RF_LNA_MODE and applying a reset or set permanently in the...
  • Page 66 MAX-F10S - Integration manual The maximum power coupled into the receiver RF input is compared against the immunity limit of the receiver defined in Out-of-band blocking immunity. 4.3.4 Antenna power supply Figure 23 shows an active antenna supply network to connect the antenna supply to the RF signal line.
  • Page 67 MAX-F10S - Integration manual The RF section should not be subject to noisy digital supply currents running through its GND plane. Make sure that critical RF circuits are clearly separated from any other digital circuits on the system board. To achieve this, position the receiver digital part towards the digital section of the system PCB and place the RF section and antenna as far away as possible from the other digital circuits on the board.
  • Page 68 MAX-F10S - Integration manual Figure 25: Recommended copper land and solder mask opening for MAX-F10S To improve the wetting of the half vias, reduce the amount of solder paste under the module and increase it outside of the module by defining the dimensions of the paste mask to form a T-shape (or equivalent) extending beyond the copper mask.
  • Page 69 MAX-F10S - Integration manual 5 Product handling 5.1 Safety 5.1.1 ESD precautions CAUTION! Risk of electrostatic discharge (ESD) damage. u-blox chips and modules are electrostatic sensitive devices containing highly sensitive electronic circuitry. A discharge of static electricity may damage the device or reduce the life expectancy of the device. To avoid ESD damage, adhere to the standard guidelines for handling ESD devices.
  • Page 70 Figure 27: Standard workstation setup for safe handling of ESD-sensitive devices 5.1.2 Safety precautions The MAX-F10S modules must be supplied by an external limited power source in compliance with the clause 2.5 of the standard IEC 60950-1. In addition to external limited power source, only Separated or Safety Extra-Low Voltage (SELV) circuits are to be connected to the module including interfaces and antennas.
  • Page 71 MAX-F10S - Integration manual As a reference, see “IPC-7530 Guidelines for temperature profiling for mass soldering (reflow and wave) processes”, published in 2001. Preheat phase During the initial heating of component leads and balls, residual humidity will be dried out. Note that the preheat phase does not replace prior baking procedures.
  • Page 72 MAX-F10S - Integration manual Optical inspection After soldering the module, consider optical inspection. Cleaning Do not clean with water, solvent, or ultrasonic cleaner: • Cleaning with water will lead to capillary effects where water is absorbed into the gap between the baseboard and the module. The combination of residues of soldering flux and encapsulated water leads to short circuits or resistor-like interconnections between neighboring pads.
  • Page 73 MAX-F10S - Integration manual If casting is required, use viscose or another type of silicon pottant. The OEM is strongly advised to qualify such processes in combination with the module before implementing this in the production. Casting will void the warranty. Grounding metal covers Attempts to improve grounding by soldering ground cables, wick or other forms of metal strips directly onto the EMI covers is done at the customer’s own risk.
  • Page 74 VIO_SEL (pin 15) needs to be connected to GND in MAX-F10S, MAX-M10S V_IO: 1.76 V - MAX-F10S and the voltage range for 1.8 V designs is different. 1.98 V, 2.7 V - 3.6 V MAX-M10M VCC: 1.76 V - 5.5 V MAX-M10M V_IO: 1.68 V - 1.98 V, 2.7 V...
  • Page 75 Consequently, pin 15 should be left open (i.e. not connected) when migrating from MAX-7W/M8W because there is no built-in antenna supervisor support in MAX-F10S. Therefore, in MAX-F10S, the active antenna supply and antenna supervisor circuitry (if used) need to be connected externally as...
  • Page 76 MAX-F10S - Integration manual Figure 29: MAX-M8 vs. MAX-F10S comparison (pin 13 - 15) Refer to the product Data sheets for details. A.2 Firmware changes Table 37 presents a summary of the key firmware-related changes between u-blox F10 and u-blox 7/8/M8/M10. Feature...
  • Page 77 MAX-F10S - Integration manual Feature Change Action needed / Remarks GPS L5 New signal. Code change (optional) BeiDou B1C New signal in M10 and F10. BeiDou satellite IDs up to 63 Code change (optional) supported. BeiDou B1I Not supported. Code change (optional) BeiDou B2a New signal.
  • Page 78 33. Nevertheless, the internal LNA provides enough gain for passive antennas. • MAX-F10S has an integrated RF circuit which includes an L1, L5 dual-band SAW filter followed by a wide-band low-noise amplifier (LNA) and a L1, L5 diplexer SAW filter stage, hence no additional...
  • Page 79 MAX-F10S - Integration manual RF front-end components are needed. The RF front-end is designed for high immunity against RF interference and is suitable for designs with a cellular transmitter. • UART and I2C communication interfaces are available. • For an absolute minimum design using UART, other PIOs (RESET_N, EXTINT, TIMEPULSE, SDA, SCL, SAFEBOOT_N) can be left open.
  • Page 80 TTFF. • An active antenna can be supplied with the VCC_RF output from MAX-F10S or from an external supply. VCC_RF is a filtered output voltage supply, which outputs VCC - 0.1 V. In addition, the active antenna supply can be turned on/off...
  • Page 81 MAX-F10S - Integration manual Figure 32: 2-pin antenna supervisor design The 2-pin antenna supervisor configuration required for the Figure 32 reference design is listed in Table Configuration key Value CFG-HW-ANT_CFG_VOLTCTRL 1 (true), default (no configuration required) CFG-HW-ANT_SUP_SWITCH_PIN 7, default (no configuration required)
  • Page 82 MAX-F10S - Integration manual Figure 33: 3-pin antenna supervisor design The 3-pin antenna supervisor configuration required for the Figure 33 reference design is listed in Table Configuration key Value CFG-I2C-ENABLED 0 (false) CFG-HW-ANT_CFG_VOLTCTRL 1 (true), default (no configuration required) CFG-HW-ANT_SUP_SWITCH_PIN 7, default (no configuration required)
  • Page 83 C External components This section lists the recommended values for the external components in the reference designs. C.1 Standard capacitors Table 40 presents the recommended capacitor values for MAX-F10S. Name Type / Value RF Bias-T capacitor 10 nF, 10%, 16 V, X7R Table 40: Standard capacitors C.2 Standard resistors...
  • Page 84 MAX-F10S - Integration manual Related documents MAX-F10S Data sheet, UBXDOC-963802114-12732 u-blox F10 SPG 6.00 Release note, UBXDOC-963802114-12318 u-blox F10 SPG 6.00 Interface description, UBX-23002975 Product packaging reference guide, UBX-14001652 For regular updates to u-blox documentation and to receive product change notifications please register on our homepage https://www.u-blox.com.
  • Page 85 MAX-F10S - Integration manual Revision history Revision Date Status / comments 14-Aug-2024 Initial release UBXDOC-963802114-12892 - R01 Revision history Page 85 of 86   C1-Public...
  • Page 86 MAX-F10S - Integration manual Contact u-blox AG Address: Zürcherstrasse 68 8800 Thalwil Switzerland For further support and contact information, visit us at www.u-blox.com/support. UBXDOC-963802114-12892 - R01 Page 86 of 86   C1-Public...